The2004 Speed World Challenge season was the 15th season of theSports Car Club of America'sWorld Challenge series. The series' title sponsor was television networkSpeed Channel, who broadcast all the races. Championships were awarded forgrand touring andtouring cars. The season began on March 19 and ran for ten rounds.Tommy Archer andAudi won the championships in GT, andBill Auberlen andBMW won in Touring Car.^[1] The season marked the first wins for theCadillac brand, a step up forGeneral Motors after three of its brands declined in the nineties.

Rnd		Date	Circuit	Supporting	Distance	GT Winning Car	TC Winning Car
GT	TC					GT Winning Driver	TC Winning Driver
1	1	March 19	Sebring International Raceway,Sebring, Florida	American Le Mans Series (12 Hours of Sebring)	63 mi (101 km) (TC) 74 mi (119 km) (GT)	Cadillac CTS-V	BMW 325i
						Max Angelelli	Bill Auberlen
2	2	May 31	Lime Rock Park,Lakeville, Connecticut	Stand-alone event	66 mi (106 km) (TC) 70 mi (110 km) (GT)	Audi RS6	BMW 325i
						Randy Pobst	Bill Auberlen
3	3	June 26	Mid-Ohio Sports Car Course,Lexington, Ohio	American Le Mans Series (American Le Mans at Mid-Ohio)	60 mi (97 km) (TC) 54 mi (87 km) (GT)	Audi RS6	Acura TSX
						Michael Galati	Matt Plumb
4	4	July 17	Infineon Raceway,Sonoma, California	American Le Mans Series (Grand Prix of Sonoma)	58 mi (93 km) (TC) 63 mi (101 km) (GT)	Porsche 911 Cup	BMW 325i
						Wolf Henzler	Bill Auberlen
	5	July 18			58 mi (93 km) (TC)	did not participate	BMW 325Ci
							Niclas Jönsson
5	6	July 24	Portland International Raceway,Portland, Oregon	American Le Mans Series (Portland Grand Prix)	58 mi (93 km) (TC) 60 mi (97 km) (GT)	Dodge Viper Competition Coupe	Acura TSX
						Tommy Archer	Pierre Kleinubing
6		August 7	Mosport International Raceway,Bowmanville, Ontario	American Le Mans Series (Grand Prix of Mosport)	74 mi (119 km) (GT)	Audi RS6	did not participate
						Michael Galati
7	7	August 8			69 mi (111 km) (TC) 74 mi (119 km) (GT)	Cadillac CTS-V	Acura TSX
						Ron Fellows	Matt Plumb
8	8	August 22 August 21	Road America,Elkhart Lake, Wisconsin	American Le Mans Series (Road America 500)	69 mi (111 km) (TC) 73 mi (117 km) (GT)	Audi RS6	Nissan Sentra SE-R
						Michael Galati	Peter Cunningham
9	9	September 24	Road Atlanta,Braselton, Georgia	American Le Mans Series (Petit Le Mans)	69 mi (111 km) (TC) 74 mi (119 km) (GT)	Cadillac CTS-V	Acura TSX
						Max Angelelli	Pierre Kleinubing
10	10	October 17	Mazda Raceway Laguna Seca,Monterey, California	American Le Mans Series (Monterey Sports Car Championships)	58 mi (93 km) (TC) 63 mi (101 km) (GT)	Porsche 911 Cup	Mazda 6
						Wolf Henzler	Jeff Altenburg
[2]

• "2004 SCCA World Challenge Box Scores"(PDF). Sports Car Club of America. Archived fromthe original(PDF) on 24 April 2012. Retrieved27 September 2011.

• GT World Challenge America
• 2004 in American motorsport

• Use mdy dates from February 2025